142834-63-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142834-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,8,3 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 142834-63:
(8*1)+(7*4)+(6*2)+(5*8)+(4*3)+(3*4)+(2*6)+(1*3)=127
127 % 10 = 7
So 142834-63-7 is a valid CAS Registry Number.
142834-63-7Relevant articles and documents
An Alternative Total Synthesis of Rutaecarpine and Vasicolinone Alkaloids
Koekoesi, Jozsef,Szasz, Gyoergy,Hermecz, Istvan
, p. 2995 - 2998 (1992)
Rutaecarpine (6) and vasicolinone (9) alkaloids were alternatively prepared by Fischer indolization of 3-(phenylhydrazonomethyl)pyrroloquinazolinone (4) under thermal and acidic conditions, respectively.